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MCQ (1 Mark)

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50 questions · timed · auto-graded

Question 131 Mark
Like an onion, the Earth is made up of several concentric layers (one inside the other). What is the uppermost layer of Earth called?
Answer
  1. Crust.
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Question 251 Mark
Rocks roll down, crack, and hit each other and are broken down into small fragments. These smaller particles are called:
Answer
  1. Sediments.
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Question 291 Mark
The inner and outer cores are together about 3500 km thick, and the core has a very high temperature and pressure. Why is the core also known as NiFe?
Answer
  1. Because it's made of nickel and ferrous.
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Question 441 Mark
________ are naturally occurring substances which have certain physical properties and definite chemical composition.
Answer
  1. Minerals
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Question 471 Mark
What happens when igneous and sedimentary rocks go under heat and pressure:
Answer
  1. They change into metamorphic rocks.
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Question 481 Mark
The molten magma cools down deep inside the earth’s crust. Solid rocks so formed are called:
Answer
  1. Intrusive igneous rocks.
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MCQ (1 Mark) - Social Science STD 7 Questions - Vidyadip